*******UPDATE*********
First of all, i would like to thank all of you for your responses. You have all confirmed what I had been thinking in the back of my head, but the truth of the matter is, I am afraid to say anything about it.

Let me start by saying that I love her deeply. I don't want to see her hurt, and I don't want to do anything to deepen that hurt that she already has going on.

But when i speak about the way i feel, (unfavorable) things happen. If we bring up the fact that i have forgotten to apologize to her she will start to cry, and say " I ask one little thing of you, and it seems like its difficult." she will go on to say how she has really been affected by my actions, and she wakes up often, really sad and depressed at how i treated her. When I tell her how I feel, and (dance around the real reason) why i forget to say i am sorry she would say " I was just remembering how Abusers will justify their actions" --- "but you've explained yourself and I don;t think your an abuser so i hear you"
---Things like that REALLY hurt me... (as i am typing it right now, i am close to tears.) but i feel horrible bringing anything up because i was the one that hurt her, i am the reason why she is upset nearly everyday. and it seems that i have no right being hurt. it seems really really selfish in a way.

She really seems hurt by my actions, and would shut down if we talk about things too deeply ( or really when things are turned on her) and that's no way to have a relationship....

I often get frustrated, emotional and close to tears when i talk about how i feel -- then the focus is on, how my tone is much like the tone i used when emotionally abusing her, or i am yelling at her (WHEN I KNOW AND SHE KNOWS I AM NOT) and that I am ALWAYS frustrated with her, and we get no where...

I am just not sure how to proceed... because to be honest, Its killing me- but i am afraid to leave because i love her.